To use this product the host USB-C port from your device must support Display Port Alt Mode and Power Delivery.
Use HDMI 2.0/ DP 1.4 or above cables for optimum performance.
USB 3.1 Type-C Overview
USB Type-C has a new feature called Alternate Modes which allows you to use non-USB connections with the USB-C cable and connection.Your device automatically applys the appropriate mode if it's supported.
Display connection be limited
Make sure the device which you're connecting to is compatible. For cable, it is right one.
Display Port connection might not work
Try using different cables.
Try these solution of Non-Display
Make sure your device and cable supports the same USB-C features as the OKX docking station.
Make sure the docking station is connected directly to your host device.
Make sure the docking station is connected to the USB-C port on your host device that supports the correct Alternate Mode. For example if you're connecting a USB 3.1 Gen2 (Type C) Alt Mode device make sure you connect to the USB-C port that supports Displayport alt mode and power delivery.
Possible causes of Non-Display
The docking station you connected to has new features for USB-C that your host device or connect cable doesn’t support.
The docking station isn't connected to the correct USB-C port on your host device.
The device is using an external hub or dock to connect to the docking station.
Too many other Alternate Mode devices or dongles are connected to your host device.
Audio/ Mic Remind
Plug in this USB C Docking Station sometimes will change the default Audio output device to Docking Station which means your laptop speakers will not work anymore.
To make your laptop speaker work please change in your laptop OS setting the audio output device back to laptop speakers.
USB Accessories Disabled Solutions
Solution 1; Please unplug and re-plug.
Solution 2; Reset the SMC of your device.